7857461 has 2 divisors, whose sum is σ = 7857462. Its totient is φ = 7857460.

The previous prime is 7857457. The next prime is 7857481. The reversal of 7857461 is 1647587.

7857461 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5880625 + 1976836 = 2425^2 + 1406^2 .

It is a cyclic number.

It is not a de Polignac number, because 7857461 - 2² = 7857457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7857401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928730 + 3928731.

It is an arithmetic number, because the mean of its divisors is an integer number (3928731).

Almost surely, 2^7857461 is an apocalyptic number.

It is an amenable number.

7857461 is a deficient number, since it is larger than the sum of its proper divisors (1).

7857461 is an equidigital number, since it uses as much as digits as its factorization.

7857461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 38.

The square root of 7857461 is about 2803.1163015473. The cubic root of 7857461 is about 198.8050496877.

The spelling of 7857461 in words is "seven million, eight hundred fifty-seven thousand, four hundred sixty-one".